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97 cad deville northstar Keeps running extrenly hotm  Have changed water pump, thermostat,cooler fan flushed radiator.  Also fuel service required light is on car wont crank now. help

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I had a similar problem and a new thermostat. I removed the thermostat altogether to see if it was a problem and no more excessive heat. Bought another more expensive thermostat and problem cured.

Posted on Dec 09, 2009

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Head gasket failure

Posted on Nov 07, 2009

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1 Answer

Finding over heating problem in a 97 sevill cadillac


Sounds like you covered everything.
The fans come on at 220 degrees but the engine continues to get hotter ? Have you tried running the engine with the thermostat out to check for flow and blockages ?

Jul 07, 2013 | 1997 Cadillac DeVille

3 Answers

Temp goes up and down


get the water pump checked and the radiator.

Sep 01, 2008 | 1997 Cadillac DeVille

1 Answer

Have a cadie 01 changed water pump and thurmostat and still over heating and running hot any ideas


Try to flush and fill with new fluid to get the passageways free of sediment.

Or, try to see if the fans are coming on at the right speed at operating temperature. May require new fans/relays/wiring to fix this problem.

I have a 1997 Cadillac Deville that was overheating its Northstar engine and it required service amounting to about $700.00 or so from an auto electric shop, but afterwards it ran cooler.

Good luck on this repair.

Feb 05, 2011 | 2001 Cadillac DeVille

2 Answers

My engine is running hot in my 97 cadillac deville and its not the thermostat. Any suggestions


Its likely the head gasket has failed. Look for bubbles or oil in the radiator

Jun 12, 2010 | 1998 Cadillac DeVille

1 Answer

Engine over heats 2000 cadallic deville northstar engine


flush your radiator first.with the thermostat out you should see the water moving if not bad water pump.this engine needs the thermostat to function properly and either a 50/50 coolant or straight coolant so it does not boil over.also make sure your fans are coming on

Sep 20, 2009 | 2000 Cadillac DeVille

2 Answers

Engine overheating in traffic or when idling


I'm assuming your car has the Northstar engine?.

Strangely enough,if you remove the thermostat in the Northstar engine, it will overheat, this is because the stat is both a thermostat and a pressure valve.I can't be bothered to explain in detail how the whole cooling system works but please understand that you need to put the stat back in,(or preferably a new one).As for the cooling fans,what you described is normal for the Northstar.
Further to this, look at my profile,I have provided similar solutions for overheating problems.

Aug 16, 2009 | 1997 Cadillac DeVille

2 Answers

Why does my 2001 cadillac deville keep running hot. ive changed the water pump and the thermistat


Well there could be a couple of problems if you live in a hot place you should change the thermostat to a lower tempatured one so the water will circulate sooner that will help it run cooler if that doesn't do it it might need the radiator flushed.

Jul 29, 2009 | 2001 Cadillac DeVille

2 Answers

Overheating


i remember trying this. if your water pump is faulty. while the engine is off, spin the radiator blade. if it spins, then your pump is out, if it stops immediately, (it has a cluth of sorts) it's ok. also use a lower degree thermostat, like 160 degrees, then it will open sooner.

Mar 18, 2009 | 1997 Cadillac DeVille

3 Answers

97 deville northstar


car keep running hot

Jul 26, 2008 | 1997 Cadillac DeVille

3 Answers

Overheating toyota tacoma


if its losing water it could be a head gasket or cracked head.

Jul 21, 2008 | 1997 Toyota Tacoma

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